皮皮学，免费搜题
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【单选题】
呼吸道的手术前准备中，下列哪项不正确（）A.
禁烟
B.
练习深呼吸和有效咳嗽
C.
痰液稠厚者蒸气吸入
D.
咳嗽明显者应用镇咳剂
E.
腹部手术者进行胸式呼吸练习
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皮皮学刷刷变学霸
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A.
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B.
should
C.
can
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may
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A.
can't
B.
will
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isn't able
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